The closest ThreatDown Email Security alternatives are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365 and Fortinet FortiMail Email and Workspace Security. Picking a ThreatDown Email Security alternative comes down to fit: Email Security Platforms coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
Closest 48 alternatives shownClosest matches: Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, Fortinet FortiMail Email and Workspace SecurityPage updated Nov 2026
The product
by ThreatDown by Malwarebytes
AI-powered email security platform for phishing and BEC protection
ThreatDown Email Security is a commercial Email Security Platforms solution made by ThreatDown by Malwarebytes. The closest matches by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, Fortinet FortiMail Email and Workspace Security, Cloudflare Cloud Email Security, and Cellopoint Cloud Email Security Solution. All 48 alternatives on this page are ranked the same way.
Hi Citrix. Hide VPNs. Hide Windows on a LAN. Knocknoc solves this. Just in time identity linked allow-listing. DIY, on-premise or SaaS. Prevent attacks fast.
VisitThese 8 solutions overlap most with ThreatDown Email Security. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
Email security platform protecting against phishing, BEC, and data loss
Key features: DMARC email authentication and enforcement, Business email compromise detection, Spear phishing protection, Account takeover detection, Data loss prevention for sensitive data
Email security platform protecting against phishing, BEC, and data loss
Email and collaboration security for Microsoft 365 environments
AI-powered email security platform protecting against phishing, BEC, and ATO
Cloudflare Cloud Email Security is a cloud-based email protection service that safeguards organizations against phishing, malware, spam, and other email-borne threats through integrated threat detection and prevention capabilities.
Cloud-based email security platform protecting against phishing, ransomware, BEC
Behavioral email security platform protecting inbound, outbound, and internal mail
Email security platform with phishing/BEC protection and MDR/XDR integration
Cloud-based email security platform protecting against phishing & ransomware
Email security platform protecting M365 & Google Workspace from threats
Cloud-native email security platform for phishing detection and response
AI-powered email security platform for threat detection and compliance
Cloud-based email security platform with AI-powered threat detection
AI-driven email security platform for detecting advanced email threats
AI-powered email and collaboration security platform for threat detection
Email security platform with AI-based threat detection and DLP capabilities
Email security platform protecting against fraud, malware, and spam threats
AI-powered email security platform detecting advanced threats via behavioral analysis
AI-powered email security operations platform for automated threat triage
Cloud email security for Microsoft 365 and Google Workspace applications
Cloud workspace security platform for email, files, and account protection
AI-powered DMARC monitoring and email authentication security platform
Cloud-native email security platform with SEG and API-based protection
Enterprise email security platform for cloud and on-premise deployments
AI-powered email security platform detecting threats across email and messaging
Email security platform protecting against phishing, malware, and exploits
Email security platform for Microsoft 365 with AI-based threat detection
AI-powered inbound email security platform for phishing & malware detection
Email threat protection for Microsoft 365 with advanced detection capabilities
AI-powered email security platform with agentic automation and detection
AI-driven email security platform for Microsoft 365 inbound/outbound threats
MX-based email security platform using AI to block spam, phishing & malware
Email security platform with AI threat detection, BEC protection, and DLP
Email and web threat detection platform with AI-based behavioral analysis
AI-powered email security platform with behavioral detection and automation
ATP solution for SaaS & email with AI-driven detection & auto-response
Email security platform filtering spam, phishing, and malware threats
Email filtering service protecting against spam, viruses, and phishing.
Email security platform protecting against phishing, malware, and BEC attacks
AI-powered email security platform that detects phishing, BEC, and malware
AI-native email security platform detecting phishing and BEC attacks
AI-based email security for M365 with phishing, BEC & malware detection.
AI-powered anti-phishing platform for Microsoft 365 & Google Workspace.
Managed Proofpoint email security service for phishing & BEC protection.
Cloud-based email filtering blocking phishing, malware, spam & BEC attacks.
DMARC monitoring platform protecting domains from spoofing and BEC attacks.
Monitors and detects lookalike domains used for brand impersonation attacks.
Monitors dark web and other sources for leaked credentials and breached data.
Common questions when weighing alternatives to ThreatDown Email Security.
The closest matches to ThreatDown Email Security by shared tags and NIST CSF 2.0 coverage are Fortra Email Security & Anti-Phishing, Microsoft Defender for Office 365, Fortinet FortiMail Email and Workspace Security, Cloudflare Cloud Email Security, and Cellopoint Cloud Email Security Solution. All of them are Email Security Platforms products.
This page shows 48 alternatives to ThreatDown Email Security, all in the Email Security Platforms category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
ThreatDown Email Security is a commercial Email Security Platforms product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
ThreatDown Email Security is a Email Security Platforms product in the Email & Messaging Security category. You can compare it with the 48 other Email Security Platforms products on this page.
View Fortra Email Security & Anti-PhishingFortra Email Security & Anti-Phishing alternativesThreatDown Email Security vs Fortra Email Security & Anti-Phishing
Email and collaboration security for Microsoft 365 environments
Key features: 10 listed. See them on the Microsoft Defender for Office 365 page.
View Microsoft Defender for Office 365Microsoft Defender for Office 365 alternativesThreatDown Email Security vs Microsoft Defender for Office 365
AI-powered email security platform protecting against phishing, BEC, and ATO
Key features: 10 listed. See them on the Fortinet FortiMail Email and Workspace Security page.
View Fortinet FortiMail Email and Workspace SecurityFortinet FortiMail Email and Workspace Security alternativesThreatDown Email Security vs Fortinet FortiMail Email and Workspace Security
Cloudflare Cloud Email Security is a cloud-based email protection service that safeguards organizations against phishing, malware, spam, and other email-borne threats through integrated threat detection and prevention capabilities.
Key features: 9 listed. See them on the Cloudflare Cloud Email Security page.
View Cloudflare Cloud Email SecurityCloudflare Cloud Email Security alternativesThreatDown Email Security vs Cloudflare Cloud Email Security
Cloud-based email security platform protecting against phishing, ransomware, BEC
Key features: 8 listed. See them on the Cellopoint Cloud Email Security Solution page.
View Cellopoint Cloud Email Security SolutionCellopoint Cloud Email Security Solution alternativesThreatDown Email Security vs Cellopoint Cloud Email Security Solution
Behavioral email security platform protecting inbound, outbound, and internal mail
Key features: 10 listed. See them on the INKY Behavioral Email Security Platform page.
View INKY Behavioral Email Security PlatformINKY Behavioral Email Security Platform alternativesThreatDown Email Security vs INKY Behavioral Email Security Platform
Email security platform with phishing/BEC protection and MDR/XDR integration
Key features: 10 listed. See them on the Sophos Email page.
View Sophos EmailSophos Email alternativesThreatDown Email Security vs Sophos Email
Cloud-based email security platform protecting against phishing & ransomware
Key features: 10 listed. See them on the SorbSecurity Cloud Email Security page.
View SorbSecurity Cloud Email SecuritySorbSecurity Cloud Email Security alternativesThreatDown Email Security vs SorbSecurity Cloud Email Security
Need the answer fast? Best Email Security Solutions for Business picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more.See the shortlist